METHOD FOR COMPRESSING A HIERARCHICAL TREE, CORRESPONDING SIGNAL AND METHOD FOR DECODING A SIGNAL

摘要

The invention regards a method for compressing a hierarchical tree describin g a multimedia signal, said tree comprising nodes and leaves, which can be associated to contents of at least two distinct types.According to the invention, said method implements a content compression for at least some of said leaves by means of at least two compression encoding techniques, each o f said techniques being selectively associated to at least one of said content types.